upload.py has a raw_input() that keeps on throwing crap, try to trap it as much as possible.

git_cl.py

Index: git_cl.py
diff --git a/git_cl.py b/git_cl.py
index 1887cbb8da66afb7c4b698c3e291de82fd5c0c3b..d24bf7348cca9c05a6da70b03ba7e629b3825d69 100755
--- a/git_cl.py
+++ b/git_cl.py
@@ -984,6 +984,8 @@ def CMDupload(parser, args):
 
   try:
     issue, patchset = upload.RealMain(['upload'] + upload_args + args)
+  except KeyboardInterrupt:
+    sys.exit(1)
   except:
     # If we got an exception after the user typed a description for their
     # change, back up the description before re-raising.